Plowshare.



J. GHRISTA.

PLOWSHARE. APPLICATION FILED MAY 19, 190B.

923, 138. Patented June 1, 1909.

To dllwhom it may concern:

T8 RANT @FFTQE.

PLGWSHARE Be it known that I, Josnrn CHRISTA, of the city of Winnipeg, in the Province of Manitoba, Canada, blacksmith, have invented certain'new and useful Improvements in Plowshares, of which the following is a specification.

My invention relates to plow shares, and the object of the invention is to provide a strong, efficient, and inexpensive plow share which can be readily taken apart and reassembled, and it consists essentially in providing a removable share and mold board which may be disconnected from the shank forming the plow point, the parts being arranged and constructed as hereinafter more particularly described.

Figure 1 shows a side elevation of a portionof an elevating'grader equipped with my plow share. Fig. 2 is a perspective view of the shank showing the share attached. Fig. Sis a, perspective view of the shank showing a modification of the share and the mannerin which it is attached. Fig. 4 is a reversed perspective view of the share as shown in Fig. 2. 7

in the (drawings like characters of referenceindicate corresponding parts in each figure. I have found that with the heavier form of'plow's, such as is used on road graders,

' that considerable trouble is experienced in sharpening the plow point and the edge of the share. With theparts all attached, the one to the other, the weight of the plow makes it very awkward to handle when sharpening, requiring two, if not three men to lift it. With my form of plow the mold board can first be removed, and later the share, which can be sharpened separately. With the mold board and share removed the P011513 can also be readilyhandled and sharpene I I 1 represents the beam of the ordinary grader to which is attached the standard 2 of the plow, by bolts 3. "The lower end of the standard is split at 4., the extending ends bein bolted at .5 to the landside 6. The forwar end of the landside is sharpened to form an integral point 7 and has a supporting plate 8 extending bac'kwardly from the point and at an inclinationj to the shank.

This plate is of sufficient Width to give a good bearing to the share, aslater explained.

9 is an arm securely fastened to the land- Specification oi. Letters Patent.

Application filed May 19, 1908.

Patented June 1, 1909.

Serial No. 133,711.

side by a bolt 10 and passing outwardly at right angles to the landside for a considerable distance and then having the end 11 in clined downwardly. The plate 8 is firmly secured to the arm by a central bolt 12.

13 is the plow share which is shaped for wardly at 13 to abut a shoulder formed by the point. The lower edge 14 of the share is designed so as to form a continuous curve with the edge 15 of the Joint, as shown.

Each share is supplie with five openings through which pass the bolts 12, 16, 17, 18, and 19, the bolts 16, 17, 18, and 19 passing into and through the plate 8, and the bolt 12 through the arm, as already described. In this manner the share is firmly fastened to the landside and it can be removed at any time by undoing the bolts. The mold board 20 is of the usual form and is shaped at its lower edge to abut the upper edge 21 of the landside. When in position the mold board is bolted firmly to the arm 9 the bolt passing through the opening 22. The upper portion of the mold board is removably secured to the standard 2.

23 represents the ordinary colter which is bolted to the landside by bolts 24.

I have found from actual experience that when a share is broken it is sometimes impossible to get a plate sufiiciently wide (somewhere about eight inches) to attach, as shown in Fig. 2. In this contingency one would have to use two narrower plates to form the share. These I have shown in Fig. 3 of the drawings in which the plates 25 and 26 form the share. The bolts 27, 28, and 29 pass into-and through the corre sponding openings in the lower member of the share and support plate, holding the lower member of the share securely in position. The bolts 31, 32, and 38 pass through the plate 26 into the upper openings, holding this part securely in position. The mold board is, as in the other instance, bolted to the arm 9 through the opening 22.

What I claim as my invention is:

In a device of the class described, a landside having an integral point, and an integral plate extending rearwardly at an inclination thereto, and said plate being of less thickness than the point so as to form a shoulder at the place where it connects with the point, an arm connecting the rear end of the landside to the rear end of the plate, said arm having a portion extending above the top of said plate, a share remov- Signed at Winnipeg, in the Province of ably connected to the plate and having its Manitoba, this 13th day of April 1907. front end abutting the shoulder, and a mold I JOSEPH CHR 1ST A board having its lower edge resting on the 5 upper edges of the share and plate, and a l Witnesses:

bolt connecting said mold board to the up- 1 JAs. M TAPLEY, per part of said arm. GERALD S. ROXBURGH. 

